Institute for Social Vision Design
ISVD-LAB-005Active

公共資産活用研究室

PPP/PFI制度の構造分析と公共資産活用の実態調査を通じて、制度設計の空白地帯と改善可能性を探索する

Research Domain

Public Policy

Research Lead

Naoya Yokota

Start Date

Apr 6, 2026

Background

日本のPPP/PFI制度は、優先的検討規程の策定拡大、スモールコンセッション・プラットフォームの設立、地域プラットフォーム協定制度の展開など、急速に整備が進んでいる。しかし「制度の存在」と「制度の機能」の間には構造的な乖離が存在する。本研究室では、内閣府・総務省・国交省の公開データと実務者の知見を交差させ、制度が意図した通りに機能しているか、どこに空白地帯があるかを定量的・構造的に分析する。

Hypothesis(4)0/6
Fieldwork0/5
Analysis0/4
Paper0/5
Outreach0/4

Research Artifacts

Progress map of frameworks and deliverables for each phase. Click a slot to expand related notes.

Hypothesis

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Framework

Problem Map

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Stakeholder Map

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Logic Model

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Research Questions

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Fieldwork

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Research Design

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Data Collection Plan

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Ethics Checklist

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Raw Data

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Analysis

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Analysis Framework

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Causal Loop Diagram

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Analysis Notes

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Data Visualization

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Paper

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Paper Outline

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Peer Review Plan

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Research Report

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Policy Brief

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Public Article

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Presentation

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Media Kit

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Other Notes (4)

1
Hypothesis

Structural Analysis of Abandoned School Small Concessions — The Institutional–Execution Gap Behind 1,951 Unused Schools

Of Japan's 7,612 abandoned schools, 1,951 remain unused. MEXT officially recommends small concessions, and the 10-year rule eliminates subsidy repayment obligations. Yet schools sit empty. This analysis examines the structural barriers across regulation, funding, and human capital that prevent the simplest form of PPP from being implemented.

1
Hypothesis

Corporate Hometown Tax at ¥63.1 Billion — How Personnel Dispatch Is Reshaping Public Asset Regeneration

Japan's corporate hometown tax donations reached ¥63.1 billion in FY2024, with 157 personnel dispatched to 119 municipalities. With up to 90% tax relief and human capital costs treated as deductible donations, this system can solve both funding and staffing gaps in public asset regeneration — but a fraud case is forcing structural reform.

1
Hypothesis

PFS Adoption at 9% — Why Municipalities Cannot Embrace Pay-for-Success Despite Complete Institutional Infrastructure

Only 154 of Japan's 1,700 municipalities have implemented Pay-for-Success (PFS) contracts — a 9% adoption rate. Despite comprehensive guidelines, subsidies, and expert dispatch programs from the Cabinet Office, three structural barriers — WTP calculation, logic model design, and internal consensus building — prevent municipalities from taking the first step.

1
Hypothesis

The Structural Gap in Priority Review Regulations — Behind the 82% Adoption Rate Lies a System That Doesn't Work

Japan's Cabinet Office has promoted Priority Review Regulations for PPP/PFI adoption, achieving an 82.1% adoption rate among cities with 200,000+ residents. Yet a structural gap exists between adoption and actual implementation. This analysis cross-references population-stratified data, Ministry of Internal Affairs surveys on institutional hollowing, and pioneering cases to quantify why regulations exist but fail to function.

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